... 极微弱信号探测器系统 EMCCD 微弱光信号 Weak Optical Signal ; Weak Light Signals 微弱正弦信号 Weak Sine Signal ...
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Then, introduced the sensing experiment system and data processing system. While elaborating on the composition of the system, explains principles and performance of the components in light road, aimed to detect weak optical signal, is then proposed.
在光纤光栅传感技术理论分析与研究的基础上,提出长周期光纤光栅边缘滤波解调方案,设计了其传感实验系统,详细论述了系统光路的具体组成,介绍了光路器件的原理和特性,针对微弱光信号的检测,设计了相应的数据处理系统,最后进行了初步的实验,用实验证明,采用长周期光纤光栅实现温度的高精度传感测量的可行性。
参考来源 - 高精度光纤光栅传感解调系统的研究·2,447,543篇论文数据，部分数据来源于NoteExpress
Macro bending measurement, macro bends are the use of fiber-optic bending leak out when the weak optical signal, optical signal to detect the direction and intensity.
宏弯测量，宏弯是利用光纤弯曲时泄漏出微弱的光信号，通过判断泄漏的方向和强度来检测光信号的方向和强度。
Using the optical chopper to modulate the detected light to make it related to the reference squarewave signal is a common method of locking phase detection of weak signals.
其中利用光学斩光器对被测光进行调制使其与方波参考信号相关是对微弱光信号进行锁相检测的一种常用方法。
The circuit of Photoelectricity Weak Signal Detection, preamplifier circuit, difference circuit, modulation circuit, optical source thermal control and current drive circuit etc. are designed.
设计实现了基于差分后谐波检测的微弱信号处理电路、前置放大电路、差分电路、调制电路和光源温度控制电路及电流驱动电路等。
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